The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Factions (The Gate) (2 members)
- Families (1 member)
- Families (BZPRPG III) (1 member)
- Fe-Lesterin (1 member)
- Fe-Matoran (1 member)
- Fe-Matoran (NBZRPG) (1 member)
- Fe-Skakdi (2 members)
- Fe-Toa (14 members)
- Fe-Turaga (1 member)
- Featured Article (1 member)
- Female Characters (4 members)
- Female Characters (BZPRPG) (1 member)
- Female Characters (BZPRPG 2010) (1 member)
- Female Characters (BZPRPG I) (2 members)
- Female Characters (BZPRPG III) (18 members)
- Female Characters (Bara Magna) (0 members)
- Female Characters (Bara Magna (Series)) (6 members)
- Female Characters (NBZP) (5 members)
- Female Characters (NBZPRPG) (1 member)
- Female Characters (New BZPRPG) (1 member)
- Female Characters (The Academy) (1 member)
- Female Toa (BZPRPG 2010) (1 member)
- File namespace templates (1 member)
- Files (1 member)
- Fire, Air, Water, Earth, Ice, and Stone Elementals (BZPRPG I) (1 member)
- Fire, Light (Temporarily) Elementals (BZPRPG III) (1 member)
- Fire / Ice Elementals (AMG) (1 member)
- Fire Elementals (5 members)
- Fire Elementals (ACD) (1 member)
- Fire Elementals (AMG) (1 member)
- Fire Elementals (BZPRPG) (3 members)
- Fire Elementals (BZPRPG I) (1 member)
- Fire Elementals (BZPRPG III) (16 members)
- Fire Elementals (NBZP) (5 members)
- Fire Elementals (New BZPRPG) (2 members)
- Fire Elementals (The Gate) (2 members)
- Fire Tribe (3 members)
- First Sons (3 members)
- Food (1 member)
- Forge, Dojo, Living Spaces (BZPRPG III) (1 member)
- Forges (1 member)
- Fracture (2 members)
- Friction Elementals (Bionicle Kingdoms I-III) (1 member)
- Ga-Koro (10 members)
- Ga-Koro Marines (1 member)
- Ga-Matoran (23 members)
- Ga-Skakdi (3 members)
- Ga-Toa (12 members)
- Ga-Wahi (9 members)
- Ga-Wahi (BZPRPG III) (2 members)